package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

/**
 * 预编译执行SQL的DML语句
 */
public class JDBCDemo8 {
    public static void main(String[] args) {
        UserInfo userInfo = InputUtil.getInputObject(new UserInfo(), "欢迎注册", "注册");
        try (
                Connection connection = DBUtil.getConnection();
        ) {
            String sql = "INSERT INTO userinfo(username,password,nickname,age) " +
                    "VALUES(?,?,?,?)";
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1, userInfo.getUsername());
            ps.setString(2, userInfo.getPassword());
            ps.setString(3, userInfo.getNickname());
            ps.setString(4, userInfo.getAge());
            int num = ps.executeUpdate();
            if (num > 0){
                System.out.println("注册成功!");
            }else {
                System.out.println("注册失败!用户名已存在！");
            }
        } catch (SQLException e) {
            throw new RuntimeException(e);
        }
    }
}
